Touch Panel

ABSTRACT

The Present Disclosure proposes a touch panel, comprising a main panel and a light-emitting touch module mounted below the main panel. A combination touch area and a plurality of sub display units corresponding to the combination touch area are arranged on the main panel. The light-emitting touch module at least comprises a first circuit board and a touch control circuit. The first circuit board is correspondingly provided with a plurality of continuously arrayed touch sensors below the combination touch area and correspondingly provided with light-emitting devices below the sub display units. These touch sensors can be used for sensing a proximity signal and sending the sensed signal to the touch control circuit to control the light-emitting state of the light-emitting device below each sub display unit.

REFERENCE TO RELATED APPLICATIONS

The Present Disclosure claims priority to prior-filed Chinese UtilityModel Patent Application No. 201120149330, entitled “Touch Panel,” filedon 6 May 2011 with the State Intellectual Property Office of thePeople's Republic of China; Chinese Patent Application No.201110121528.0, entitled “Touch Panel,” filed on 6 May 2011 with theState Intellectual Property Office of the People's Republic of China;and Chinese Patent Application No. 201110121517.2, entitled “TouchPanel,” filed on 6 May 2011 with the State Intellectual Property Officeof the People's Republic of China. Additionally, the Present Disclosureis related to Taiwanese Utility Model Patent Application No. 100210368,entitled “Touch Panel,” filed on 8 June 2011 with the IntellectualProperty Office of the Republic of China; Taiwanese Patent ApplicationNo. 10119966, entitled “Touch Panel,” filed on 8 Jun. 2011 with theIntellectual Property Office of the Republic of China; and TaiwanesePatent Application No. 10119968, entitled “Touch Panel,” filed on 8 Jun.2011 with the Intellectual Property Office of the Republic of China. Thecontent of each of the aforementioned Patent Applications areincorporated in their entireties herein.

BACKGROUND OF THE PRESENT DISCLOSURE

The Present Disclosure relates, generally, to a touch panel, and, inparticular, to a touch panel that is more convenient and fast tooperate.

Out of consideration for aesthetics and easy, convenient operation, inexisting electromechanical products, touch manner is increasinglyemployed in the control panel. That is, display pattern designs arearranged on the panel of an electromechanical product, and a touchoperation is sensed by arranging capacitance or resistance touch sensorsbelow the panel. The touch position is converted into a correspondingelectric signal to be sent to a touch control circuit. The touch controlcircuit may correspondingly control the light-emitting state of thelight-emitting devices corresponding to the display pattern designs.Light emitted by the light-emitting devices may light the displaypattern designs on the panel. The touch control circuit also may sendthe corresponding signals to a main control circuit to control theworking state of the electromechanical product, so that thehuman-machine interaction is achieved effectively, and the operation andcontrol convenience of electromechanical products is improved.

Taiwanese Patent No. 97208966 (the content of which is incorporatedherein in its entirety) discloses a touch panel display apparatus,mainly comprising a touch control circuit, electrically connected withat least one touch sensor and a light-emitting device corresponding tothe touch sensor that may sense a proximity signal and send theproximity signal to a touch control circuit to control the power of thelight-emitting device. The apparatus also includes a main panel, aposition of which corresponding to the light-emitting device is providedwith a light hole, the light-emitting device being arranged on one sideof the light hole. The apparatus also includes a nameplate, on whichdisplay pattern designs of the panel are arranged. The apparatus alsoincludes a light-guiding device, arranged in the light hole. When thetouch sensor is operated to make the light-emitting device emit light,light is scattered in the light hole through the light-guiding deviceand refracted on the nameplate.

Such existing touch panels usually have a single-key single-displayconfiguration with a display area, a touch sensor and a light-emittingdevice. For a plurality of function options having internal relation,they are either arranged separately or arranged in menus in a pluralityof groups. Touch panels with such structure are inflexible, theoperating interface is poorly humane, and the operation is not soconvenient and fast, so that the grade of the whole electromechanicalproduct shows up low.

SUMMARY OF THE PRESENT DISCLOSURE

The Present Disclosure overcome the aforementioned shortcomings andproposes a touch panel, which can provide a flexible and more humaneoperating interface, making the operation more convenient and fast,improving the user experience, thus, improving product grade.

In allusion to the technical issue, the Present Disclosure proposes atouch panel, comprising a main panel and a light-emitting touch modulemounted below the main panel. A combination touch area and a pluralityof sub display units corresponding to the combination touch area arearranged on the main panel. The light-emitting touch module at leastcomprises a first circuit board and a touch control circuit. The firstcircuit board is correspondingly provided with a plurality ofcontinuously arrayed touch sensors below the combination touch area andcorrespondingly provided with light-emitting devices below the subdisplay units. These touch sensors can be used for sensing a proximitysignal and sending the sensed signal to the touch control circuit tocontrol the light-emitting state of the light-emitting device below eachsub display unit.

Preferably, the combination touch area is annular, and each touch sensorcorresponding to the combination touch area is continuously arrayed onthe first circuit board along the rotation direction in such a mannerthat touch sensors are joined end to end. Each touch sensorcorresponding to the combination touch area is preferably a capacitancetouch sensor, wherein the boundary between two adjacent touch sensors isdovetail-shaped.

BRIEF DESCRIPTION OF THE FIGURES

The organization and manner of the structure and operation of thePresent Disclosure, together with further objects and advantagesthereof, may best be understood by reference to the following DetailedDescription, taken in connection with the accompanying Figures, whereinlike reference numerals identify like elements, and in which:

FIG. 1 is a view of a touch panel of the Present Disclosure;

FIG. 2 is an exploded view of the touch panel of FIG. 1;

FIG. 3 is another exploded view of the touch panel of FIG. 1;

FIG. 4 is a top view of the touch panel of FIG. 1, after the main panelis removed;

FIG. 5 is a sectional view along Line A-A of FIG. 4;

FIG. 6 is a drawing of partial enlargement of Area B of FIG. 5;

FIG. 7 is an exploded solid diagram of the touch panel of FIG. 1;

FIG. 8 is an exploded solid diagram of a first circuit board, a displaymodule and a second circuit board in the touch panel of FIG. 1;

FIG. 9 is a top view of the first circuit board of FIG. 8;

FIG. 10 is a drawing of partial enlargement of Area C in FIG. 9, whereinthe area of touch sensors is in perspective to show the physicaldistribution state of each sensor;

FIG. 11 is a frame diagram of a touch control circuit in the touch panelof FIG. 1;

FIG. 12 is a flow chart of the touch control circuit of FIG. 11; and

FIG. 13 is a flow chart of a light-emitting device control circuit inthe touch control circuit of FIG. 11.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

While the Present Disclosure may be susceptible to embodiment indifferent forms, there is shown in the Figures, and will be describedherein in detail, specific embodiments, with the understanding that thedisclosure is to be considered an exemplification of the principles ofthe Present Disclosure, and is not intended to limit the PresentDisclosure to that as illustrated.

As such, references to a feature or aspect are intended to describe afeature or aspect of an example of the Present Disclosure, not to implythat every embodiment thereof must have the described feature or aspect.Furthermore, it should be noted that the description illustrates anumber of features. While certain features have been combined togetherto illustrate potential system designs, those features may also be usedin other combinations not expressly disclosed. Thus, the depictedcombinations are not intended to be limiting, unless otherwise noted.

In the embodiments illustrated in the Figures, representations ofdirections such as up, down, left, right, front and rear, used forexplaining the structure and movement of the various elements of thePresent Disclosure, are not absolute, but relative. Theserepresentations are appropriate when the elements are in the positionshown in the Figures. If the description of the position of the elementschanges, however, these representations are to be changed accordingly.

As shown in FIG. 1 to FIG. 8, the touch panel in the Present Disclosurecomprises a main panel 1, a light-emitting touch module 2 arranged belowthe main panel 1, and a power switch 4 arranged on the main panel 1.There are mainly two different types of touch display modes on the touchpanel, the first type of which is an integral combination of traditionaltouch and display, and the second type corresponds to novel combinationtouch area and combination display area according to the PresentDisclosure.

The main panel 1 is a transparent ABS plastic member, it is a wholeframe structure with only one opening at the lower end, and it has abase part 11 and lateral plates 12 extending downward from the surroundof the base part 11. The light-emitting touch module 2 is received in acavity that is formed by the base part 11 and the four lateral plates12. The base part 11 is provided with a hole only at one corner to mountthe power switch 4, when the touch panel is mount onto the washingmachine, it just needs to have essential processing to the hole toachieve water-proof and dust-proof effect, in order to prevent thelight-emitting touch module 2 from being damaged.

The base part 11 is provided with a plurality of first touch displayareas 111 corresponding to the first type of touch mode, a displaywindow 112 and one second touch display area 113 corresponding to thesecond type of touch mode.

The second touch display area 113 mainly comprises an annularcombination touch area 114 and a combination display area 115corresponding to the combination touch area 114, the combination displayarea 115 comprises a plurality of sub display units 118 arranged on leftand right sides of the combination touch area 114, each sub display unit118 is printed with a corresponding function display pattern design (notshown in the drawings, it may be respectively corresponding to onewashing mode of the washing machine). The second touch display area 113further comprises a touch display area 116 for executing functions inthe center of the annular combination touch area 114.

A layer of non-transparent ink is printed at a part requiring no lighttransmission on the lower surface of the base part 11; at a partrequiring light transmission, for example: at the back of the displaypattern designs formed of characters and/or patterns within the firsttouch display area 111 and the sub display units 118 in the combinationdisplay area 115, a layer of transparent ink is printed, so that theeffect of a transparent window is achieved, in a case that there is nolight, the display pattern design is black, in a case that light isirradiated from the back of the transparent window, the correspondingdisplay pattern designs can be seen.

The light-emitting touch module 2 comprises a first circuit board 21, aplurality of light-guiding members 22, a plurality of reflective members23, a spacer 24, a main circuit module 3 and a touch control circuit 25mounted on the main circuit module 3. With reference to FIG. 4 to FIG.8, a first touch sensor 211 and a first light-emitting device 212 arecorrespondingly arranged on the top surface of the first circuit board21 below the first touch display area 111 of the main panel 1. A notch213 is also formed on one side of the first circuit board 21.

With reference to FIG. 9 and FIG. 10, on the top surface of the firstcircuit board 21 facing to the main panel 1, a plurality of second touchsensors 214 corresponding to the combination touch area 114 of the mainpanel 1, a third touch sensor 216 corresponding to the touch displayarea 116 for executing functions, a plurality of second light-emittingdevices 215 corresponding to the sub display units 118 of thecombination display area 115, and two third light-emitting devices 217corresponding to the combination touch area 114 and the touch displayarea 116 for executing functions are arranged.

The first touch sensor 211, the second touch sensors 214 and the thirdtouch sensor 216 in the embodiment are all capacitance-sensitive touchsensors, while in other embodiments, resistance-sensitive touch sensorsalso may be possible, these touch sensors 211, 214 and 216 may be usedfor sensing a proximity signal (for example, touch of the finger) of theoperator. Wherein, below the first touch display area 111 and the touchdisplay area 116 for executing functions, only one touch sensor isone-to-one arranged; while below the annular combination touch area 114(with reference to FIG. 10), a plurality of second touch sensors 214 arecontinuously arrayed on the front surface of the first circuit board 21along the annular rotation direction in such a manner that touch sensorsare joined end to end; there are total eight second touch sensors 214,the boundary between two adjacent one of the second touch sensors 214 isdovetail-shaped, such boundary structure helps to reduce the signalinterference between two adjacent second touch sensors 214; each one ofthe second touch sensors 214 is electrically and logically formed ofcopper foils (not shown) between two boundaries. The firstlight-emitting device 212, the second light-emitting devices 215 and thethird light-emitting devices 217 are light-emitting diodes (LED),preferably.

The light-guiding members 22 are made of polycarbonate (PC) plastic andcorrespondingly arranged below each first touch display area 111,combination touch area 114, combination display area 115 and touchdisplay area 116 for executing functions of the main panel 1. Wherein,the top surface of the light-guiding members 22 is preferably a roughfog surface that helps to achieve the effect of evenly projecting lightupward; while the bottom surface thereof is preferably a smooth surfacethat helps to reduce escape of light from the bottom surface throughfull reflection in order to decrease attenuation. The lateral edge ofthe light-guiding members 22 is attached with the first light-emittingdevice 212, the second light-emitting devices 215 or the thirdlight-emitting devices 217, thus to be able to guide light from thefirst light-emitting device 212, the second light-emitting devices 215or the third light-emitting devices 217 into a certain area range inparallel, and then evenly project light upward through the fog surfaceon the top part onto the first touch display area 111, combination toucharea 114, combination display area 115 or touch display area 116 forexecuting functions of the main panel 1, in order to display thefunction display pattern designs on the main panel 1.

The reflective members 23 are correspondingly arranged below thelight-guiding members 22, and they may reflect light scattered from thebottom surface of the light-guiding members 22 onto the top surface ofthe light-guiding members 22 again to increase the brightness of thedisplay pattern designs. With reference to FIG. 6, the reflectivemembers 23 are preferably formed of a layer of reflective membraneprinted on the first circuit board 21 with reflective ink (for example,white ink), and directly attached below the bottom surface of thelight-guiding members 22, wherein the reflective members 23 in the firsttouch display area 111 and the touch display area 116 are directlyprinted above the first touch sensor 211 or the third touch sensor 216.Such reflective membrane has advantages of low cost and thin and lightstructure with respect to common reflective structures. By arrangingreflective members 23 below the light-guiding members 22 for reflection,the light-emitting efficiency of the first light-emitting device 212,the second light-emitting devices 215 and the third light-emittingdevices 217 may be improved, so that the brightness of the first touchdisplay area 111, combination touch area 114, combination display area115 or touch display area 116 for executing functions is increased,energy-saving and environmental protection are achieved.

The spacer 24 is arranged between the base part 11 of the main panel 1and the first circuit board 21 and made of light tight materials (forexample, black foam). Both surfaces of the spacer 24 are provided withglue, the top surface of the spacer is adhered with the lower surface ofthe main panel 1, and the bottom surface of the spacer is adhered withthe upper surface of the first circuit board 21. For the light-guidingmembers 22, the spacer 24 may play roles of blocking light andpositioning, in order to effectively prevent light interference andlight leakage between different display areas. The spacer 24 iscorrespondingly provided with a plurality of bottom-to-top receivingholes 241 to correspondingly receive the light-guiding members 22, andthe first light-emitting device 212, the second light-emitting devices215 or the third light-emitting devices 217 inside.

With reference to FIG. 11, the touch control circuit 25 mainly comprisesa microprocessor control circuit 251 and a light-emitting device controlcircuit 252. The microprocessor control circuit 251 consists of a powercircuit, a microprocessor and an accessory circuit of themicroprocessor, the microprocessor may be preferably a single chipmachine CY8C22545. The light-emitting device control circuit 252 furtherconsists of a shift register, a light-emitting device driving chip andother electronic elements, the model of the shift register may bepreferably 74HC595D, and the model of the light-emitting device drivingchip may be preferably DS2003CMX.

With reference to FIG. 12 and FIG. 13 together, the microprocessorcontrol circuit 251 may monitor the sensed signal (in the embodiment, itcorresponds the capacitance value of the touch sensors) of each one ofthe first touch sensor 211, the second touch sensors 214 and the thirdtouch sensor 216 in real time, compare the sensed signal with a setthreshold to judge the ON/OFF state of the function key corresponding toeach touch sensor, and send the ON/OFF state signal to an externalinterface to drive the washing machine to do corresponding operations.In addition, the microprocessor control circuit 251 also may receive anLED display state control signal from the external interface, convertthe signal into a driving signal, and send the driving signal to thelight-emitting device control circuit 252. The light-emitting devicecontrol circuit 252 receives the signal sent by the microprocessorcontrol circuit 251, and accurately drives each correspondinglight-emitting device to enter different light-emitting states accordingto the signal logic: full-bright, half-bright, extinguished, in order todisplay different working states on the main panel 1.

During practical application, when the finger of the operator starts toapproach one of the first touch display areas 111 from above, the sensedsignal (in the embodiment, it corresponds to the capacitance value ofthe touch sensor) of the first touch sensor 211 below this first touchdisplay area 111 will gradually increase and the sensed signal will besent to the touch control circuit 25, when the touch control circuit 25monitors that the capacitance value of the first touch sensor 211exceeds the set threshold (at this moment, the finger has alreadytouched or is quite close to the surface of this first touch displayarea 111), the touch control circuit 25 may correspondingly control thefirst light-emitting device 212 on the lateral edge of the first touchsensor 211 to change to the full-bright light-emitting state from theinitial half-bright light-emitting state, in order to change thebacklight state of the function display pattern designs on the firsttouch display area 111 of the main panel 1, and simultaneously, notifythe washing machine with the operation information to do correspondingoperations.

It should be particularly noted that, in the preferred embodiment, whenthe finger of the operator moves to a certain area in the combinationtouch area 114, the capacitance values of the several second touchsensors 214 in the areas close to the finger will change and the sensedsignals are sent to the touch control circuit 25, the touch controlcircuit 25 then adds up these sensed signals and calculates the adjacentcombinations with the most intense change of sensed signals throughsensitive detection algorithm to judge the touch position of the fingeris above which second touch sensor 214, in the preferred embodiment, thetouch control circuit 25 also may further specifically judge whether thetouch position is above the border part or the middle part of the secondtouch sensor 214, and then control the second light-emitting device 215below the sub display unit 118 corresponding to the touch positionwithin the combination display area 115 to change to the selected secondlight-emitting state (in the embodiment, it corresponds to full-brightlight-emitting state) from the initial non-selected first light-emittingstate (in the embodiment, it corresponds to half-bright light-emittingstate), while still keep the second light-emitting devices 215 belowother non-selected sub display units 118 in half-bright light-emittingstate; through such design, each one of the physical second touchsensors 214 may correspond to two corresponding sub display units 118(each one of the sub display units 118 corresponds to one specificwashing mode) in the combination display area 115, therefore eightsecond touch sensors 214 in the combination touch area 114 maycorrespond to sixteen sub display units 118 in the combination displayarea 115, so that the distribution density of second touch sensors 214may be decreased to reduce the manufacturing difficulty and themanufacturing cost. Of course, other sensitive detection algorithms maybe employed, so that the second touch sensors 214 establish differentmapping relations with the sub display units 118, for example: theinitial value may be any one sub display unit 118 displaying infull-bright light-emitting, when the finger slips through one secondtouch sensor 214 each time, the next adjacent sub display unit 118 isautomatically switched to display in full-bright light-emitting, whilethe last sub display unit 118 recoveries to display in half-brightstate. In this way, when the finger of the operator rotates and movesalong the combination touch area 114, the second light-emitting devices215 of the corresponding selected sub display units 118 in thecombination display area 115 will display in full-bright in turn, whilethe second light-emitting devices 215 of the non-selected sub displayunits 118 will recovery to the primary half-bright state, such operatinginterface enables the operator to be able to switch and select amongmany different washing modes conveniently. Finally, after the finger ofthe operator falls in the touch display area 116 for executingfunctions, the third touch sensor 216 may sense the proximity signal ofthe finger of the operator and send the sensed signal to the touchcontrol circuit 25 to control the full-bright light-emitting display ofthe third light-emitting devices 217, at the same time, the washingmachine may start to wash according to the selected washing mode, suchcool operating interface is fairly flexible, it helps to provide betteruser experience thus to improve the grade of electrical appliances, andthe operation is also quite convenient and fast.

The main circuit module 3 comprises a second circuit board 31, a cableconnector 32 and a display module 33.

The second circuit board 31 is arranged below the notch 213 of the firstcircuit board 21 and forms a height difference with the first circuitboard 21 in order to have an interval of distance in space, and thesecond circuit board 31 may be electrically connected with the firstcircuit board 21 through a connector (not shown). In the preferredembodiment, the touch control circuit 25 is preferably arranged on thesecond circuit board 31. Through the separated arrangement of the twocircuit boards 21 and 31, the first touch sensor 211, the second touchsensors 214 and the third touch sensor 216 may be separated from thetouch control circuit 25 in space, so that the interference for thefirst touch sensor 211, the second touch sensors 214 and the third touchsensor 216 on the first circuit board 21 from the electromagneticradiation emitted by the touch control circuit 25 and other powerelements on the second circuit board 31 may be reduced, therefore theevent that wrong sensed signals are sent due to the fluctuation of thecapacitance value of touch sensors to further cause the touch controlcircuit 25 to have erroneous judgment operations is prevented.

One end of the cable connector 32 may be directly welded on the secondcircuit board 31, and the other end thereof may be adapted with othercircuits in the washing machine, for example, connected with a motorcontrol panel in the washing machine, to send the related operationsignals captured by the touch control circuit 25 to the main controlcircuit of the washing machine to control the running of the motor.

The display module 33 is arranged correspondingly below the displaywindow 112 on the base part 11 of the main panel 1. The display module33 may be an LED light-emitting module and also may be an LCDlight-emitting module, and it provides indicators of the working stateof the washing machine by displaying various different light-emittingpatterns. The display module 33 is arranged at the notch 213 on one sideof the first circuit board 21 in parallel. Preferably, the secondcircuit board 31 is directly welded on the bottom surface of the displaymodule 33, while the electronic elements forming the touch controlcircuit 25 are arranged on the bottom surface of the second circuitboard 31 deviating from the main panel 1, the touch control circuit 25on the second circuit board 31 and the touch sensors on the firstcircuit board 21 are designed into a deviated structure, so that theinterference to the touch sensors from the touch control circuit 25 alsomay be reduced. On the other hand, the combined application of thedisplay module 33 with high display density and the light-emitting touchmodule 2 with touch function but low display density together helps toimprove the key arrangement of the touch panel and reduce the cost.

Compared with the prior art, according to the touch panel in the PresentDisclosure, the combination touch area 114 is arranged on the main panel1, the corresponding combination display area 115 is arranged around thecombination touch area 114, the combination display area 115 comprises aplurality of sub display units 118; simultaneously, a plurality ofcontinuously arrayed touch sensors 214 are correspondingly arrangedbelow the combination touch area 114, and light-emitting devices 215 arecorrespondingly arranged below the sub display units 118 in thecombination display area 115; in this way, the operator maycorrespondingly select the sub display units 118 in the combinationdisplay area 115 in a manner of rotating and moving with a finger in thecombination touch area 114, so that a more humane operating interface isobtained, such operating interface has a sense of technology, it helpsto obtain better user experience, thus to improve the grade ofelectromechanical products, and the operation is also quite convenientand fast.

While a preferred embodiment of the Present Disclosure is shown anddescribed, it is envisioned that those skilled in the art may devisevarious modifications without departing from the spirit and scope of theforegoing Description and the appended Claims.

1. A touch panel, the touch panel comprising: a main panel, the mainpanel including a combination touch area and a plurality of sub displayunits arranged thereon; and a light-emitting touch module mounted belowthe main panel, the light-emitting touch module including a firstcircuit board and a touch control circuit, the first circuit board beingprovided with a plurality of continuously arrayed touch sensors belowthe combination touch area and light-emitting devices below the subdisplay units, the touch sensors adapted for sensing a proximity signalfrom an operator and sending the sensed signal to the touch controlcircuit to control a light-emitting state of a light-emitting devicebelow each sub display unit.
 2. The touch panel of claim 1, wherein thecombination touch area is annular, and each touch sensor correspondingto the combination touch area is continuously arrayed on the firstcircuit board along a rotation direction in such a manner that touchsensors are joined end to end.
 3. The touch panel of claim 2, whereineach touch sensor corresponding to the combination touch area is acapacitance touch sensor, wherein a boundary between two adjacent touchsensors is dovetail-shaped.
 4. The touch panel of claim 1, wherein thetouch control circuit is able to monitor a sensed signal of each touchsensor corresponding to the combination touch area in real time, andprocesses these sensed signals in order to judge a touch position of theoperator within the combination touch area.
 5. The touch panel of claim4, wherein the touch control circuit comprises a microprocessor controlcircuit and a light-emitting device control circuit, the microprocessorcontrol circuit is able to monitor the sensed signal of each touchsensor corresponding to the combination touch area in real time,compares the sensed signal with a set threshold to judge a correspondingON or OFF state of each touch sensor; and the light-emitting devicecontrol circuit is able to control the light-emitting state of eachlight-emitting device according to a control signal.
 6. The touch panelof claim 4, wherein the physical number of the sub display units islarger than the physical number of the touch sensors corresponding tothe combination touch area, the touch control circuit can calculateadjacent combinations with the most intense change of sensed signalsaccording to the sensed signals of a plurality of adjacent touch sensorscorresponding to the combination touch area to specifically judge thetouch position of the operator, further to control the light-emittingdevice of the sub display unit corresponding to the touch position tochange to a second light-emitting state from a first light-emittingstate.
 7. The touch panel of claim 1, wherein the touch panel furthercomprises a second circuit board, the touch control circuit is arrangedon the second circuit board, the second circuit board has an interval ofdistance with the first circuit board in space to reduce electromagneticinterference of the touch control circuit to the touch sensors on thefirst circuit board.
 8. The touch panel of claim 7, wherein the touchcontrol circuit is mounted on the bottom surface of the second circuitboard deviating from the main panel; and the plurality of touch sensorscorresponding to the combination touch area are arranged on the topsurface of the first circuit board facing to the main panel.
 9. Thetouch panel of claim 5, wherein the microprocessor control circuitcomprises a power supply circuit and a microprocessor; and thelight-emitting device control circuit comprises a shift register and alight-emitting device driving chip.
 10. The touch panel of claim 2,wherein the main panel further comprises a touch display area arrangedin the annular center of the combination touch area; the first circuitboard is correspondingly provided with a touch sensor and at least onelight-emitting device below the touch display area; the touch sensor cansense the proximity signal of the operator and send the sensed signal tothe touch control circuit to control a light-emitting state of the atleast one light-emitting device.
 11. The touch panel of claim 10,wherein the light-emitting touch module is correspondingly provided withlight-guiding members and reflective members arranged below thelight-guiding members below the touch display area, a lateral edge ofthe light-guiding members is attached with the at least onelight-emitting device, and the reflective members are arranged above thetouch sensors.
 12. The touch panel of claim 11, wherein the reflectivemember is a layer of reflective membrane printed on the first circuitboard with reflective ink.
 13. The touch panel of claim 11, wherein thelight-emitting touch module further comprises a spacer between the mainpanel and the first circuit board, the spacer is made of light tightmaterials, the spacer is provided with a plurality of bottom-to-topthrough receiving holes to correspondingly receive the light-guidingmembers, an upper surface of the light-guiding members is a fog surface,while a lower surface thereof is a smooth surface.
 14. The touch panelof claim 1, wherein the first circuit board is correspondingly providedwith light-guiding members and reflective members arranged below theselight-guiding members below each one of the sub display units, and alateral edge of the light-guiding member is attached with thecorresponding light-emitting device.
 15. The touch panel of claim 14,wherein the reflective member is a layer of reflective membrane printedon the first circuit board with reflective ink.
 16. The touch panel ofclaim 14, wherein the light-emitting touch module further comprises aspacer between the main panel and the first circuit board, the spacer ismade of light tight materials, the spacer is provided with a pluralityof bottom-to-top through receiving holes to correspondingly receive thelight-guiding members, an upper surface of the light-guiding members isa fog surface, while a lower surface thereof is a smooth surface.